Hosted by Eddie Trunk, the annual Ride for Ronnie raises awareness and funds for cancer prevention and research by commemorating the life of Ronnie James Dio, the Dio and Black Sabbath singer who died of cancer in 2010. This year's event began with a motorcycle ride from Harley-Davidson in Glendale, California, before winding down with a concert at Los Encinos Park in nearby Encino. Last year's ride brought in over $50,000 for charity.

"When Ronnie passed away, a lot of people wanted to send money to cancer research," the singer’s widow, Wendy Dio, told Ultimate Classic Rock in 2017. "Some of these big companies do good work, but a lot of money gets eaten up into administration. So, 14 really good friends of Ronnie’s, who’ve been good friends of his for almost 30 years, we all got together and formed the Ronnie James Dio Stand Up and Shout Cancer Fund."